<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

/**
 * Provides quick access to each encoding type.
 *
 * @package    Swift
 * @subpackage Encoder
 * @author     Chris Corbyn
 */
class Swift_Encoding
{
	/**
	 * Get the Encoder that provides 7-bit encoding.
	 *
	 * @return Swift_Mime_ContentEncoder
	 */
	public static function get7BitEncoding()
	{
		return self::_lookup('mime.7bitcontentencoder');
	}

	/**
	 * Get the Encoder that provides 8-bit encoding.
	 *
	 * @return Swift_Mime_ContentEncoder
	 */
	public static function get8BitEncoding()
	{
		return self::_lookup('mime.8bitcontentencoder');
	}

	/**
	 * Get the Encoder that provides Quoted-Printable (QP) encoding.
	 *
	 * @return Swift_Mime_ContentEncoder
	 */
	public static function getQpEncoding()
	{
		return self::_lookup('mime.qpcontentencoder');
	}

	/**
	 * Get the Encoder that provides Base64 encoding.
	 *
	 * @return Swift_Mime_ContentEncoder
	 */
	public static function getBase64Encoding()
	{
		return self::_lookup('mime.base64contentencoder');
	}

	// -- Private Static Methods

	private static function _lookup($key)
	{
		return Swift_DependencyContainer::getInstance()->lookup($key);
	}
}
